A transparent conducting film is used to attach chip-on-glass display drivers to the back of an electronic display. Transparent conducting films are electrically conductive and optically transparent. Thus, they can be used to make electrical connections across a wide area, such as an LCD screen, while still allowing light to pass through. In LCD applications, a transparent conducting film like silver nanowire film (SNF) may be used to connect display-driver integrated circuits to the main processor on a printed circuit board. Because SNF is very flexible, it can be wrapped around an edge (or multiple edges) of the display and the display drivers can be mounted on the back of the display, which reduces the need for a large display border for the chip-on-glass connections.
Chebeleu, Livius, "Using Nanowire Film in LCD Displays for Flexible Placement of Chip-on-Glass", Technical Disclosure Commons, (April 18, 2017)